Excavator



M... E. wms.

EXCAVATOR. APPLICATION FILED MA1/23, 192|.

Patented Nov. 7,` 1922.

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M- E. WATTS.

EXCAVATOR. APPLICATION FILED MAY 23, |921.

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' M. E; WATTS.'

EXCAVATOR.

APPLICATION FILED MAY 23 I92I.

Patented Nov. 7, 1922.

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M. E. WATTS.

EXCAVATDR.

APPLICATIDN FILED MAY 23. 1921.

S11/um do@ Patented Nov., 7, 1922.

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EXCAVATOR.

. APPLICATION FILED MAY 23, 192%. l ,434, 937, Patented Nov.. 7, 1922.

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EXCAVATOR. APPLICATION FILED MAY 23. |921.

Patented NOVn 7, 1922.

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imatented Nov. 7, i922.:

earner MARION E. WATTS, 0F PORTLAND, OREGON.

EXCAVATOR. i

Application led May 23,

To @ZZ 'whom 'it' may concern: A

Be it known that if, Manton E. tirarme, a

citizen of the United States, residing at- Portland, in the `county of Multnomah and State of Oregon7 have invented a new and useful Excavator', of which the following is a specification. 1

This invention relates to excavating machines, and more particularly to an excavating machine having an adjustable boom, whereby the digging' elements which operate thereover, may be moved to various locations within a given radius, thereby eliminating the necessity7 of moving the machine to var7 the angle of operation of the digging element.

A further obj ect of the invention is to provide endless means associated with the digging elements, for delivering the excavated material to a position remote from the path of travel of the machine.

A still further object of the invention is to provide a hollow mast for supporting the boom, and at the saine time providing a. housing forV they gearing employed in operating the boom. u

`With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the lcombination and arrangement of parts rand in the details of construction hereinafter desi ibed and. claimed7 it being understood that changes in the Infecise embodimentof the invention herein. disclosed, may be made within thescope of what is claimed, wit-hout departing from the spirit of the invention.

ileferring to the drawings iligure 1 a side elevational View of an excavating machine constructed in accordance with the present invention.

` Figure 2 is a plan view of the saine. F i `@gure 3 is a front elevational view of the machine, the adjustable boom being removed. Figure t isa sectional view taken on line -l---i-i of lFigure 5.

Figure 5 is asectionalr viewtaken on line 5 of Figure 2. Figure 6 is a sectional view taken approximatelyl on line 6 6 of Figure 2, and

Fig. 7 is a view of the upper end of the vertical shaft. i

`bi-:weled pinion 24; which has 19x21. semi no. 47i,e5o.

Referring to the drawings in detail, the machine includes a frame 5 which is supported at its rear, by means of the wheels 6,

mounted on the axle i', the forward portion n of the machine being mounted on the creepers 8, which are of any conventional construction, randwhieh are secured to the frame in the usual manner.

Supported at the forward end of the machine is a hollow mast 9 which includes a base lOand an upper movable sectionll, the lower end of the upper movable section '11 being provided with gear 12 formed exteriorly thereof, which gear in mesh with the worin 13, which is supported adjacent to the lower endY of the mast.

Extending through the mast is a vertical shaft 111 which-is mounted in the bearings 15 and 16 respectively, disposed at opposite ends of the mast, the lower end of the shaft 14 having the beveled gear 17 mounted thereon, which beveled pinion is in mesh with ythe beveled pinions 18 and 19, carried by the shafts 20 and 21 respectively. The main or drive shaft extends into the mast and carries the beveled gear 22 on one end thereof, which beveled gear meshes with the beveled gear 17 to transmit motion thereto, to accomplish the rotation of the shaft 14. The shafts 20 and L1 extend laterally with respect to the mast, and have their outer eirtreinities mounted in the bearings 23 which are supported by the frame. Mounted on one end of each of the shafts 20 and 21 is a connection with the clutch face 25 that cooperates with the clutch face 26, designed to move longitudinally of the shaft associated'therewith for clutching the pinion 24: to its shaft- Disposed at the end of each of the shafts E20 and 21 is a vertical shaft 27 which carries a beveledl pinion 28 meshing ,with the beveled pinion 24, the pinion 2S also meshing with the beveled pinion 29 carried by the shaft 30, and which is journaled in the bearing 3l. The shaft 27 extends upwardly and has a pinion 32 secured thereto, which pinion meshes with a suitable pinion 34e on oneend of the shaft 33, which shaft provides a support for the roller 38, over which the flexible .conveyor 35 operates, it being obvious that due to the meshing of the pinions and operation of the shafts as described, that rotary movement is imparted to the flexible conveyor 35.

Supported on the shaft 30 is a suitable roller 36 over which operates Athe flexible conveyor 37 which is designed to. receive material from the flexible conveyor 85 and deliver the same rearwardly, or remote from the path of travel of the machine while in operation. yVihile this structure is described at one side of the machine, it is to be understood that this structure is duplicated at the oiposite side of themachine, as shown by Figure 2 of the drawings whereby the material may be delivered to either side of the machine, as desired;

The upper end of the shaft 'lllis supported in the bearing` 16 which is disposed at the upper end of the mast, there being provided a beveled gear 39 supported on the extreme upper end of the shaft ll, to mesh with the beveled gear l() which is secured to the shaft il and disposed at a point` intermediate'the ends thereof, Supported on vthe outer ends of the shaft all., are the sprocket wheels 4:2, which sprocket wheels accommodate the chains fl?, that also operate over the sprocket wheels elet mounted on the shaft d5 sothat movement of the shaft @l-l will be imparted to the shaft 45.

T his shaft l5 is mounted at the upper end of the adjustable boom 4:6, which boom provides asupport for the endless chain 47 that carries the digging buckets 48, there being' provided sprocket wheels 49 and 50 disposed adjacent to the ends of the bucket boom 4.6, to accommodate the endless chain 47 to accomplish the digging operation.

The sprockets Li9 are mounted on the shaft l5 and receive rotary motion therefrom, whereby the buckets i8 are forced into their work. The bucket boom et@ is supported by the arms 5l, that have connection with the arms 52 at the lower ends thereof, the latter arms havin@v pivotal connection with the vertical support as through the arms 54, there being` provided intermediate bracing bars 55 which. connect the arms 51 and. l

to the upper portion of the mast` An upper bracing bar 56 has connection with the outer or free end ofthe arm 51, and r,also has connection with the arms 57 that are supported adjacent to the upper end of the frame 58, thereby bracing the upper portion 'of the boom support. rlhis frame 58 embodies spaced arms 58, the lower ends thereof extendingdownwardly and having connectionA with the frame of the machine as shown by Figure 8 of the drawings, the frame being indicatedr at 59. The upper ends of the spaced arms 58 are held in such spaced relation as by means ofthe bar (Sil. Disposed adjacent to the upper ends nai-smsen" wardly and operates over the pulleys 61 that are connected to the bucket boom as through the medium of the arms 62, the intermediate portion of the ca le operating` over the pulleys 62. The cable 60 also operates over the pulleys 63 supported by the upper bar (Si of the frame 58, from where the ends of the able nieves over the pulleys 65 and are wound onthe drums 66, which drums are operated by suitable gearing' to be heremore fully described. From the frei' going it will be seen that by winding cables on their drums, the bucket boom do may be adjustedvertically, to cause the buckets to operate at various angles with respect to the machine.

nipported in front of the mast 9 is a guard 6"? that is supported by means of the ba 's 55 and the relatively short bars 68, the lforward portion of trie guard being` open to pei-mit the buckets ,i8 to pass therethrough and deliver material within the gua-rd.

. Disposed in direct alignment with the lower end of the guard 67 is a hopper 69 that is provided with. discharge spouts 7U and l, which extend laterally, one spout beine locatedy to deposit material on one flexible conveyors 35 while the oppo- -ioout is disposed to deposit material on the opposed flexible conveyor 85 which operates at the opposite side ofthe machine,

being` lprovided a pivoted gate "(2 operl; A:een the spouts, for controlling the of material therethrough, that is to say that when the gate T2 is moved to a 'tion as indicated by Figure 8 of ythe ,Y win s, material will be permitted to pass through the spout 70, but if the gate 72 is moved 'to the opposite side, material will be directed through the spout 71.

Mounted at the rea: of the frame is a power device I3 which, may be of any suitable character, the same in the present showbeing; in the form of an internal combustion engine, the drive shaft 7i? thereof c' nhewn clutched to the main or drive i of the machine through the clutch er so that the shaft 75 may be operator idler at the "will of the operator.

This drive shaft T5 is mounted* in the bearir 77 and T8 and carries a vpinion 79 adiaceirt to one end thereof, which pinion constantly in mesh with the pinions 80 and 8l mounted the shafts 82 and 88 respectively, which shafts also support the pinions 84h Friction clutch members 85 and 85 are mounted on the shafts 82 and 83, and it will be seen that due to the location of these clutch members 85 and 86, either of theshafts 82 and 83 may be thrown into operation at 'the will of the operator, the clutch members being however connected 1 sans? with the gears 80 and 81 that arefree to rotate on their shafts.

Mounted on one end of the shaft 83 is Ia beveled pinion 87 meshing with the beveled pinion 88 mounted on one endof the shaft 89, and which is clutched to the shaft by means of the clutch member 90 to impart rotary movement to the gear wheel 91, which in turn transmits motion to the relatively large gear wheel 92 mounted on the main or drive axle of the machine, which accomplishes the operation. of the Creepers to move the machine.

Supported in a plane above the shaft 82 is a shaft 117 which carries the gear 116 that meshes `with the gear 118 also supported on the shaft 82, the shaft 117 carrying a worm 119 meshing with the gear 120 that is mounted on shaft 89.

A rectangular frame 93 is supported by the frame of the machine and one end of the drive shaft 7 5 terminates within the frame 93, where the same is provided with a clutch face to be clutched to the clutch face 94 of the stub shaft 95. Mounted on. the stub shaft 95 .is a beveled gear 90 which is constantly in mesh with the beveled gears 9T and 98, the gear 97 being mounted on one end of the shaft 99 that carries a beveled pinion 100 on the opposite end thereof, the latter pinion meshing with. the pinions 101 and 102 there being mounted a clutch element 103 between the pinion 100 and gear 97, so that the pinion 100 may be thrown into and out of mesh at the will of the operator.

The pinion 101 imparts rotary movement to the shaft 104- which in turn imparts rotary movement to the pinion 105 through the pinion 106 mounted on one end of the shaft 104, the pinion 105 operatingto in part rotary movement to the shaft 10T, to which the worm 13 is keyed. Thus it will be seen that rotary movement is imparted to the .mast 9 through the train of gears, as described. rlhe pinion 98 is mounted on one end of the shaft 108 and imparts rotary movement thereto, which shaft imparts ron tary movement to' the beveled pinion 109 through the clutch element 110, which in. turn transmits rotary motion to the pinion 111 that is mounted on one end of the shaft 112 that carries a worm meshing with the gear 113. v The gear 113 is mounted on one end of the shaft 114i and on which shaft the drums 115 are mounted, the cable 60 being wound thereon. lf it is desired to rotate the drums to raise or lower the bucket boom, the clutch member 110 should be operated to throw the pinion 100 into operation to accomplish the rotation of the shaft 1141, and drums as cescribed.

lf it is desired to rotate the mast, to cause the bucket boom to operate at various angles with respect to the machine proper, itis only necessary to operate the clutch member` 103 which operation throws the pinion 101 into operation'which imparts rotary movement to the shaft 10.7, its worin gear 13, and the gear 12 mounted at the lower endy of the movable portion'll of the mast 9.

1t might be further stated however that the direction of rotation should be governed by the direction of rotation of the drive shaft in any Well known manner. p ln the operation of the device, if it is desired to operate the buckets, the clutch mechanisms are operated to move the drive shaft l5 into engagement with the shaft 95, `which carries the pinion 22, and since the pinion 22 meshes with the beveled gear 17, the shaft 111 is operated, transmitting motion to the pinion carried at the upper end thereof, which pinion rotates the shaft 1-1, sprocket wheels 12 and 14, through the mcdium of the chains, which in turn imparts the rotary movement to the buckets.

1f it is desired to change the angle of operation, of the bucket boom, suitable gearing is operated to cause the rotation of the shaft 10T and worm 13 to rotate the movable mast as previously described.

Having thus described the invention., what is claimed as new is z- 1. An excavating machine comprising a frame, a hollow mast supported at one end of the frame, means for rotating the mast in a horizontal plane, an operating shaft eX- tending through the mast and having beveled pinions formed on the ends thereof, a bucket boom having pivotal connection with the mast, buckets operating over the boom, means associated with the beveled pinions on one end of the operating shaft for operating the buckets, means for moving the bucket boom vertically, and means for delivering material laterally of the machine.

2. An excavating machine comprising a. frame, a hollow mast supported at one end of the frame, a movable bucket boom supported by the mast, a hopper supported by the hollow mast, a guard supported at the front of ,the mast directly over the hopper to direct material to the hopper, means disposed. under the hopper for receiving material therefrom and delivering the same laterally of the frame, an` endless chain of buckets operating on the bucket boom, and means passing through the hollow mast for controlling the movements of the boom.

3. An excavating machine comprising a movable frame, a hollow mast supported by the frame, a boom supported by the mast, a shaft extending through the hollow mast and carrying a pinion at the lower end thereof, shafts extending through the base of the mast, and carrying pinions in mesh with the pinion on the shaft that entends througl'i the hollow mast, to rotatethe same, a hoppei` as my own, I have hereto aixed my signamova-ble With the hollow mast, an endless ture in the presence of tnfowitnesses. chainof buckets operating over vthe boom and adapted to deliver material to the liop- MARION E' TA'I'V'LS' 5 per, and means under the hopper for deliverlVitnesses:

in? material laterally. W. F. B/IAGILL,

n testimony that I claim the foregoing ESTHER F. OLSON'. 

